Cas 88293-73-6,5α-pregn-20-yne

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Check Digit Verification of cas no

The CAS Registry Mumber 88293-73-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,8,2,9 and 3 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 88293-73:
(7*8)+(6*8)+(5*2)+(4*9)+(3*3)+(2*7)+(1*3)=176
176 % 10 = 6
So 88293-73-6 is a valid CAS Registry Number.

88293-73-6Upstream product

848-62-4 allopregnan-20-one

88293-73-6Downstream Products

88293-73-6Relevant articles and documents

PREPARATION AND ABSOLUTE CONFIGURATION AT C(22) OF 21,26,27-TRINOR-5α-CHOLESTANE-22,25-DIOL DERIVATIVES

Pouzar, Vladimir,Vasickova, Sona,Drasar, Pavel,Cerny, Ivan,Havel, Miroslav

, p. 2423 - 2436 (2007/10/02)

Reaction of 5α-pregnan-21-al (V), obtained from ester of the corresponding acid III via the alcohol IV, with lithium salt of 1-methoxymethoxy-2-propyne afforded both the isomeric 25-methoxymethoxy-21,26,27-trinor-5α-cholest-23-yn-22-ols (VI and VII) which

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CAS

88293-73-6